A3 Industries VIS Compact Quick Disconnect Sling Stocket Black. Unlike traditional QD sockets that require two #8 screws and a full M-LOK slot the VIS installs securely using only half an M-LOK slot and a single #10 fastener. That fastener is no weak point - the 10-24 alloy hardware provides an impressive 2540 lbs. of tensile strength and 2700 lbs. of shear resistance outperforming typical industry designs. Where many QD sockets rely on aluminum bodies that can wear down under repeated contact with hardened steel bearings the VIS is precision-machined from premium 4340 high-strength steel. This eliminates wear issues and ensures an exceptionally robust long-lasting sling interface you can trust on any hard-use build. Specifications for A3 Industries VIS Compact Quick Disconnect Sling Stocket: Manufacturer: A3 Industries Color: Black Fabric/Material: 4340 Steel Package Contents: A3 Industries VIS Compact Quick Disconnect Sling Stocket A3 Industries QD-010: VIS Compact Quick Disconnect Sling Stocket Black